Vehicle-brake.



J; C. TURNBULL & B. J. HATL AY,

VEHICLE BRAKE.

APPLICATION IILED MAYE, 1909.

Patented Aug. 8

2 SHEBTS-SEEET 1.

J. G.-TURNBULL & B. J. HATLAY.

VEHICLE BRAKE.

- APPLICATION FILED MAY 5, 1909. 999,91 9 Patented Aug. 8, 1 911.

' 2 SHEETS-SHEET 2.

II III al d ll? VIII/fill 7f 14!!!! Witmuaeo i i I dz'6 a: (M 5-6 2 Zatt oznuzd.

UNTTED STATES PATENT OFFTGE.

JAMES C. TURNBULL AND BENJ'IMAN J. I-IATLAY, OF FENWICK, WEST VIRGINIA.

VEHICLE-BRAKE.

Specification of Letters Patent.

Patented Aug. 8, 1911.

Application filed May 5, 1909. Serial No. 494,075.

To all whom it may concern:

Be it known that we, J AMES C. TURNBULL and BENJIMAN J. HATLAY, citizensof the United States, residing at Fenwick, in the county of Nicholas andState of VVest'Virginia, have invented certain new and usefulImprovements in VehicleBrakes, of which the following is aspecification.

This invention relates to vehicle brake mechanism, and more particularlyto braking mechanism for use in connection with horse detachingmechanism, and has for its object to provide a brake mechanism adaptedfor operation by the draft animal during the use of the vehicle, andalso adapted for operation by a hand lever, after the animals have beendetached.

Another object is to provide a structure of this kind embodyingrelatively few parts, and in which means is provided for holding thebrake against movement in either direction when desired.

Other objects and advantages will be apparent from the followingdescription, and it will be understood that changes in the specificstructure shown and described may be made within the scope of the claimswithout departing from the spirit of the invention.

In the drawings forming a portion of this specification, and in whichlike numerals of reference indicate similar parts in the several views,Figure 1 is a top plan of the running gear of a vehicle provided withthe present invention, Fig. 2 is a side elevation of the vehicle, theparts being shown in position to permit free operation of the brakes,Fig. 3 is a detail perspective view showing the brake operatingmechanism set to hold the brake locked, Fig. 4 is a detail perspectiveView showing the brake mechanism set in the opposite direction, Fig. 5is a longitudinal section taken centrally on line 5 5 of Fig. 1, Fig. 6is a detail view showing the releasing lever moved into position todetach the whifi'letree.

Referring now to the drawings, the present vehicle comprises front andrear axles 7 and 8 respectively connected by a reach pole 9. This reachpole, at its forward end, enters an opening 10 in the front axle tree-11, where it is secured by means of a king bolt 12. Slidably mountedupon the rearward portion of the reach pole 9 there is a transverselyextending brake beam 13, having brake shoes 14 at its ends arranged tobear against the rearward wheels 15. The brake beam has secured theretoa pair of forwardly convergent rods 16, which are secured at theirforward ends to a link 17. This link 17 has a longitudinal slot 18formed therein which receives the king bolt 12, the link extendingthrough the opening 10, as shown. The forward extremity of the link isbifurcated horizontally, and between the resultant spaced portions 19,there is pivoted the rearward end of a shift rod 20. This shift rod isarranged for longitudinal sliding movement in a groove 21 formed in theupper surface of a tongue 22 and is held in the groove by retainingmembers 23. The tongue 22 is secured to the forward axle 7 by means ofsuitable clips A.

Mounted upon the tongue 22 at opposite sides of the groove 21, there area pair of brackets 24: which extend upwardly, and which have engagedtherein the ends of a stationary horizontal shaft 25, which thus extendstransverselyof the shift rod and is located thereabove. The uppersurface of the shift rod is provided with rack teeth 26, and mountedupon the shaft 25 there is a lever 27 having a segmentally formed lowerend 28 meshing with the teeth 26. It will be observed that by operationof the lever 27, the shift rod 20 may be moved to operate the brake.

A dog 29 is pivoted upon the shaft 25 for movement into and out ofengagement with the rack teeth 26, and as shown in the drawings. thisdog may be shifted to lie at opposite sides of the shaft 25 and thushold the shift rod against movement in either direction as desired. Anoperating rod 30 is connected with the dog 29 and is engaged through aneye 31 located upon the side of the lever 27. The rod 30 is suitablyjointed to facilitate the movement of the dog 29 through verticalmovement of the rod as will be understood. A laterally extending member32 is carried by the upper end of the rod.30 and may be engaged in anotch 32 formed in the upper end of the lever 27 to hold the rod withthe dog elevated and out of engagement with the rack teeth 26.

The shift rod 20 extends forwardly, and has its forward extremity bentdownwardly, as shown at 20 and extended through a slot 34 formed in theforward portion of the tongue. This downwardly bent portion 20 extendsbelow the tongue, and receives thereagainst the ring of a neck-yoke 35,so that rearward movement of the neck-yoke when the wagon is held backby the team, results in rearward movement of the shift rod andconsequent application of the brakes. A longitudinal slot 36 is formedin the tongue 22 and communicates with the groove 21. This slot receivesthe lower portion of a pivot bolt 37 which is engaged through awhiflletree 38 disposed transversely above and upon the shift rod 20. Amember 39 extends upwardly and forwardly from the shift rod and projectsover the whittletree, thismember receiving the bolt therethrough. Abovethe member, the pivot bolt is provided with vertically spaced laterallyextending portions 40, and an intervening reduced portion 41. Theseportions 40 receive therebetween a split foot 42 which extendsdownwardly and forwardly from a lever 43 mounted upon the shaft 25.These elements form the releasing mechanism and it will be observed,that when the lever 43 is rocked rearwardly, the foot 42 will be raisedto disengage the pivot bolt and thus release the whi'liletree, in thisway freeing the team. After this operation has been performed, the handlever 2'? may be operated to set the brake as previously brought out.The bolt 37 extends downwardly through the slot 36, the end of this slotthus limiting the move ment of the bolt longitudinally of the tongue.

The bracket 24 which lies adjacent to the lever -13 is provided with anotch 4a in its upper portion, which receives the end of a locking dogL5, this dog being arranged to hold the lever 43 against movement torelease the whiftletree. A transverse member 46 is engaged transverselybeneath the reach pole, rearwardly of the front axle 7, and has engagedtherein a pair of arms 48 which extend upwardly and over the axle andthen downwardly and toward each other beneath the tongue, where they areconnected. These arms thus hold the tongue elevated after the team hasbeen detached. As shown, the reach pole 9 is formed in two sections Cand D which are connected by means of a clip E. This clip has a transverse member F engaged with its arms beneath the lower section of thereach pole,

this member having a downwardly offset central portion receiving thelink 17.

From the foregoing, it will be seen that there is provided a mechanismwhich provides a brake which may be used as an automatic brake undernormal circumstances, and as a hand brake when desired.

What is claimed is:

1,. The combination with a wagon, of a tongue secured thereto, a barmounted on the tongue and adapted to be engaged and shifted by the neckyoke, a brake, a link connecting the bar with the brake, rack teethformed on the upper face of the bar, a bracket secured to the tongue oneach side of the rack portion of the bar, a pivot pin connecting thebrackets, a lever pivotally mounted on the pin and having a segmentshaped toothed head engaging the rack portion of the bar, the pivotalmovement of the lever shifting the bar to set or release the brakes, apawl pivoted on the pin, and connections from the pawl to the lever foroperating the pawl to move it into engagement with the portion of therack on either side of the pivot pin as desired to lock the bar againstsliding movement in either direction.

2. In a brake mechanism, the combination with a shift rod, of brakeshoes connected with the shift rod for operation thereby, upwardlydirected rack teeth carried by the shift rod, a bracket, a leverpivotally mounted in the bracket and having rack teeth engaging the rackteeth of the shift rod, a dog pivotally connected with the bracket formovement to extend at either side of the lever and to engage the rackteeth of the shift rod to hold the shift rod against movement, a rodconnected with the dog for movement of the dog out of engagement withthe shift rod, and a member carried by the rod and arranged forengagement upon the upper end of the lever to hold the said rod with thedog, out of engage ment with the shift rod.

In testimony whereof we aflix our signatures, in presence of twowitnesses.

JAMES C. TURNBULL. BENJTMAN J. HATLIXY. lVitnesses:

KYLE B. ODELL, BENJAMIN I-I. STANLEY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of latents, Washington, D. G.

